TessWebApp vs Viessmann Access
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
TessWebApp
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Current features: - Analysis and sending of customers' samples. - Modification of components and machines. - List of samples analyzed and pending resolution. - Search of components, machines and samples by different parameters such as: date, status, model ... Identification required to access.
Viessmann Access
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Viessmann Access app - The secured and simple solution for passwordless authentication to Viessmann web applications. Viessmann Access is the app for strong authentication to Viessmann web applications without entering a password or second factor. After setting up and registering your account, you receive a push notification when you log in, which is released by you using your secure PIN or, depending on the device, biometric security features such as facial recognition or fingerprint. And you are already logged in.
Screenshots
Verdict
The clearest difference is update cadence: TessWebApp at weekly against Viessmann Access's every 4 months. TessWebApp also leads on iOS requirement (10.0 vs 12). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
TessWebApp ships an update weekly, Viessmann Access every 4 months. The most recent releases landed on October 7, 2026 and October 11, 2026 respectively.
| Parameter | TessWebApp | Viessmann Access |
|---|---|---|
| Price | Free | Free |
| Update frequency | Weekly — better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 10.0 — better | 12 |
| Further details — not scored | ||
| Size | 75 MB | 52 MB |
| Age rating | 4+ | 4+ |
| Developer | LUBRICATION MANAGEMENT SL | Viessmann IT Service GmbH |
In-app purchases
TessWebApp
No in-app purchases
Viessmann Access
No in-app purchases
Questions
Is TessWebApp free?
Is Viessmann Access free?
Do TessWebApp or Viessmann Access have ads?
Which is updated more often, TessWebApp or Viessmann Access?
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